Southwest 3-Day Sale: Select One Way Flight from $55

Book by 4/18. 21-day advance purchase required. Blackout dates apply. Nonrefundable. Seats, travel days, and markets limited. Fares valid only on nonstop service. Continental U.S. travel valid 5/7/19 - 6/12/19, and 8/20/19 - 10/30/19. Interisland Hawaii travel valid 5/12/19 - 10/30/19. Travel to/from San Juan, Puerto Rico valid 9/4/19 – 10/31/19. International travel valid 8/20/19 - 10/31/19. Points bookings do not include government fees from $5.60 per one-way flight.